THE AMBIENT NOISE ENERGY MOTION IN THE NEAR-SURFACE LAYER IN OCEAN WAVE-GUIDE

The results of measurements of scalar - vector characteristics of the ambient noise acoustic field in deep ocean areas over the range of 1-8 00 Hz are presented. The subject of investigations were the ambient no ise energy in the part of the ocean wave-guide that lied between the s urface and the underwater sound channel axis lying at the depth of the order of 1200 m. A telemetric drifting autonomous system with combine d receivers was used in the investigations. A combined receiver consis ted of a scalar receiver (hydrophone) and a vector receiver of three c omponents particle velocity. Our studies revealed that ambient noise e nergy transport in the vertical plane occurred in three main direction s: 1) over the range of 1-12 Hz it proceeded from the underwater sound channel axis to the ocean surface in the angles range of 0-degrees -3 0-degrees; 2) over the range, of 32-141 Hz it proceeded from the sea s urface to the underwater sound channel axis in the angles range of 0-d egrees-40-degrees; 3) over th range of 282-800 Hz noise energy flux ma de an angle between 10 and 30-degrees with z axis, and its horizontal component coincided with wind wave propagation direction over the rang e of 447-800 Hz. Over the range of 282-355 Hz horizontal component of the noise energy flux coincided with ripple direction and over the ran ge of 562-800 Hz it did with the propagation direction of wind surface waves.